The availability of qualified personnel presents a substantial challenge to implementing early intervention systems. Neither new nor current personnel necessarily will have received training specific to this population. Because of the large number of personnel involved, states developing training opportunities to address this need have relied primarily on large-scale inservice and conference formats. These formats, however, may not be appropriate for achieving the degree of change needed to bring about possibly pervasive alterations in skill and values. The training process described in this article, staff mentoring, was developed as one option for providing a more personalized, intensive approach to training. Evaluation results are presented for the initial period of developing the process and for the first eight trainer-trainee dyads to complete the process.